Arapaima gigas is the largest freshwaterfish in the world. It is therefore absolutely not suitable for our living room aquariums, but only for the very largest show aquariums. Since it is very aggressive towards conspecifics, it is recommended to keep it alone in an aquarium smaller than 5 meters, especially at a later age. It is also a real predator, so the company of smaller fish is not recommended.
Arapaima gigas was officially described by Schinz in 1822.
You can sometimes hear Arapaima gigas in the wild. They not only breathe underwater, but also regularly surface to take a breath of air. They do this so loudly that it can be heard over a great distance.
Synonyms: Sudis gigas, Arapaema gigas, Sudis pirarucu, Vastres cuvieri, Vastres arapaima, Vastres agassizii, Vastres mapae.
Originating from South America; You can find them in the Amazon in Brazil.
They are carnivorous, so you should feed them with live food like fish.
Breeding Arapaima gigas
It is impossible to breed them in the aquarium because they need a very large aquarium. In the wild they make a crater nest in the sand, 15 centimeters deep and 50 centimeters wide. The parents guard the eggs and fry.
Due to overfishing Arapaima gigas has become an endangered species. The number of fishes has been dropping rapidly.
Jan Bukkems – Aquavisie
John de Lange